Plastic article or earthenware shaping or treating: apparatus – Means applying electrical or wave energy directly to work – Radiated energy
Patent
1985-11-12
1987-07-07
Nozick, Bernard
Plastic article or earthenware shaping or treating: apparatus
Means applying electrical or wave energy directly to work
Radiated energy
B25B 1700
Patent
active
046784225
ABSTRACT:
A system for photoablating a product blank such as a corneal lenticule includes a molding means having a predetermined size and shape to which the finished, molded product should conform. The system includes a source of photoablating light such as an excimer laser, a mechanism for aligning light from the excimer laser with the mold and a blank in the mold. The mold is made of material impervious to photoablating light so that the walls of the mold surrounding the cavity protect the product blank within the cavity when the laser beam is kept parallel to the top surface of the mold, essentially comprising a three-dimensional photoresist. With the moldable product blank held against the inner mold surface, and a portion of the product blank projecting from the mold, photoablating light directed onto the mold and onto the projecting portion removes only the projecting portion, leaving a finished product having a size, shape and conformation substantially identical to the inner mold cavity.
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